package netty.echo;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

@Sharable
public class EchoClientHandler extends ChannelInboundHandlerAdapter {
	@Override
	public void channelActive(ChannelHandlerContext ctx) throws Exception {
		System.out.println("client active");
		ctx.writeAndFlush(Unpooled.copiedBuffer("main.java.netty rocks!", CharsetUtil.UTF_8));
	}
	
	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf byteBuf = (ByteBuf)msg;
		System.out.println("client read：" + byteBuf.toString(CharsetUtil.UTF_8));
	}

    @Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
		cause.printStackTrace();
		ctx.close();
	}
}

